Fortinet, Inc.
MX ˙ BMV ˙ US34959E1091
SecurityMX:FTNT / Fortinet, Inc.
InstitutionNorthwestern Mutual Wealth Management Co
Latest Disclosed Ownership59,676 shares
Latest Disclosed Value $ 4,876,748
Northwestern Mutual Wealth Management Co reports 1.45% decrease in ownership of FTNT / Fortinet, Inc.

On May 7, 2026 - Northwestern Mutual Wealth Management Co filed a 13F-HR form disclosing ownership of 59,676 shares of Fortinet, Inc. (MX:FTNT) valued at $4,876,748 USD as of March 31, 2026. The entity filed a previous 13F-HR/A on February 10, 2026 disclosing 60,556 shares of Fortinet, Inc.. This represents a change in shares of -1.45% during the quarter.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-05-07 2026-03-31 13F FORTINET COM 34959E109 59,676 -880 -1.45 4,877 1.41 0.0030
2026-02-10 2025-12-31 13F/A-1 FORTINET COM 34959E109 60,556 1,342 2.27 4,809 -3.42 0.0030
2026-02-05 2025-12-31 13F FORTINET COM 34959E109 449,302 390,088 12,907 0.0081
2025-11-14 2025-09-30 13F FORTINET COM 34959E109 59,214 -2,565 -4.15 4,979 -23.78 0.0033
2025-08-13 2025-06-30 13F FORTINET COM 34959E109 61,779 5,654 10.07 6,531 20.90 0.0048
2025-05-14 2025-03-31 13F FORTINET COM 34959E109 56,125 233 0.42 5,403 2.31 0.0044
2025-02-11 2024-12-31 13F FORTINET COM 34959E109 55,892 -8,151 -12.73 5,281 6.32 0.0045
2024-11-12 2024-09-30 13F FORTINET COM 34959E109 64,043 -50,090 -43.89 4,967 -27.80 0.0044
2024-08-16 2024-06-30 13F FORTINET COM 34959E109 114,133 -21,176 -15.65 6,879 -25.58 0.0068
2024-05-15 2024-03-31 13F FORTINET COM 34959E109 135,309 8,024 6.30 9,243 24.05 0.0095
2024-02-13 2023-12-31 13F FORTINET COM 34959E109 127,285 15,436 13.80 7,450 13.52 0.0084
2023-11-14 2023-09-30 13F FORTINET COM 34959E109 111,849 23,458 26.54 6,563 -1.77 0.0085
2023-08-14 2023-06-30 13F FORTINET COM 34959E109 88,391 19,474 28.26 6,682 45.87 0.0086
2023-05-15 2023-03-31 13F FORTINET COM 34959E109 68,917 -9,987 -12.66 4,580 18.75 0.0064
2023-02-21 2022-12-31 13F FORTINET COM 34959E109 78,904 29,848 60.84 3,858 59.98 0.0058
2022-11-14 2022-09-30 13F FORTINET COM 34959E109 49,056 7,987 19.45 2,411 3.74 0.0042
2022-08-04 2022-06-30 13F FORTINET COM 34959E109 41,069 38,282 1,373.59 2,324 143.86 0.0040
2022-05-09 2022-03-31 13F FORTINET COM 34959E109 2,787 -28 -0.99 953 -5.74 0.0015
2022-02-03 2021-12-31 13F FORTINET COM 34959E109 2,815 1,354 92.68 1,011 136.21 0.0017
2021-11-15 2021-09-30 13F FORTINET COM 34959E109 1,461 456 45.37 428 79.08 0.0008
2021-08-13 2021-06-30 13F FORTINET COM 34959E109 1,005 -16,056 -94.11 239 -92.40 0.0005
2021-05-14 2021-03-31 13F FORTINET COM 34959E109 17,061 16,145 1,762.55 3,146 2,213.24 0.0067
2021-02-12 2020-12-31 13F FORTINET COM 34959E109 916 -128 -12.26 136 10.57 0.0003
2020-11-13 2020-09-30 13F FORTINET COM 34959E109 1,044 -917 -46.76 123 -54.28 0.0003
2020-08-14 2020-06-30 13F FORTINET COM 34959E109 1,961 1,319 205.45 269 313.85 0.0008
2020-05-08 2020-03-31 13F FORTINET COM 34959E109 642 186 40.79 65 32.65 0.0003
2020-02-13 2019-12-31 13F FORTINET COM 34959E109 456 -509 -52.75 49 -33.78 0.0002
2019-11-12 2019-09-30 13F FORTINET COM 34959E109 965 95 10.92 74 10.45 0.0003
2019-08-12 2019-06-30 13F FORTINET COM 34959E109 870 -119 -12.03 67 -19.28 0.0003
2019-05-10 2019-03-31 13F FORTINET COM 34959E109 989 65 7.03 83 27.69 0.0004
2019-02-12 2018-12-31 13F FORTINET COM 34959E109 924 212 29.78 65 -1.52 0.0003
2018-11-01 2018-09-30 13F FORTINET COM 34959E109 712 660 1,269.23 66 2,100.00 0.0003
2018-08-10 2018-06-30 13F FORTINET COM 34959E109 52 30 136.36 3 200.00 0.0000
2018-05-14 2018-03-31 13F FORTINET COM 34959E109 22 22 1 0.0000
2017-08-10 2017-06-30 13F FORTINET COM 34959E109 0 -48 -100.00 0 -100.00
2017-05-09 2017-03-31 13F FORTINET COM 34959E109 48 -950 -95.19 2 -93.33 0.0000
2017-02-15 2016-12-31 13F FORTINET COM 34959E109 998 95 10.52 30 -9.09 0.0003
2016-11-14 2016-09-30 13F FORTINET COM 34959E109 903 -186 -17.08 33 -2.94 0.0005
2016-08-29 2016-06-30 13F FORTINET COM 34959E109 1,089 357 48.77 34 54.55 0.0005
2016-05-16 2016-03-31 13F FORTINET COM 34959E109 732 732 0.00 22 0.0004
2016-02-16 2015-12-31 13F FORTINET COM 34959E109 0 0 0 0.0000
2015-11-16 2015-09-30 13F FORTINET COM 34959E109 0 -2 -100.00 0 -100.00 0.0000
2015-09-30 2015-06-30 13F/A-1 FORTINET COM 34959E109 2 -90 -97.83 0 -100.00
2015-08-14 2015-06-30 13F FORTINET COM 34959E109 92 3
2015-05-15 2015-03-31 13F FORTINET COM 34959E109 92 92 -99.99 3 -99.98 0.0001
2013-11-14 2013-09-30 13F FORTINET COM 34959E109 0 -739,804 -100.00 0 -100.00
2013-08-14 2013-06-30 13F FORTINET COM 34959E109 739,804 739,804 12,947 0.1424
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.